Mrs. Janet Taylor's Hand-book [&c.].1865 |
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Página 28
... centre ; after heaving the log , the line must be passed into the crutch , just before it is drawn in , and the points and parts of a point , contained be- tween the direction of the log line and the fore and aft line of the semi ...
... centre ; after heaving the log , the line must be passed into the crutch , just before it is drawn in , and the points and parts of a point , contained be- tween the direction of the log line and the fore and aft line of the semi ...
Página 34
... centre of our system , and the source of light and heat ; it seems , therefore , not only more natural , but certainly more convenient for the ordinary purposes of life , that the " working day " should be regulated by the Sun. Now the ...
... centre of our system , and the source of light and heat ; it seems , therefore , not only more natural , but certainly more convenient for the ordinary purposes of life , that the " working day " should be regulated by the Sun. Now the ...
Página 43
... centre . Subtract this from 90 ° for the true zenith distance , which will be north , if the sun bears south , or if the observer is north of the sun , but when the observer is south of the sun , or it bears north from him , the zenith ...
... centre . Subtract this from 90 ° for the true zenith distance , which will be north , if the sun bears south , or if the observer is north of the sun , but when the observer is south of the sun , or it bears north from him , the zenith ...
Página 44
... centre of that object at the time of its rising or setting . The magnetic amplitude , is the compass bearing of the object , when in the eastern or western horizon . Rule . Find the Greenwich date from the apparent time at ship , and ...
... centre of that object at the time of its rising or setting . The magnetic amplitude , is the compass bearing of the object , when in the eastern or western horizon . Rule . Find the Greenwich date from the apparent time at ship , and ...
Página 45
... centre of the compass towards that point representing the true amplitude , then , if the magnetic amplitude be to the left hand of this point , the variation is easterly , but if to the right hand it is westerly . The true amplitude may ...
... centre of the compass towards that point representing the true amplitude , then , if the magnetic amplitude be to the left hand of this point , the variation is easterly , but if to the right hand it is westerly . The true amplitude may ...
Términos y frases comunes
A.M. at ship amplitude assumed latitude axis line azimuth barometer bearing bill of lading boiler Bottomry cargo centre Certificate of Competency charter-party Chief Mate chro chronometer collision compass condenser course and distance cyclone cylinder departure diff difference of latitude difference of longitude direction dist double altitude dunnage easterly engines equator Examination eye 19 feet eye 20 feet feet required foggy weather Greenwich date High Water Home Trade Passenger hurricane index error Janet Taylor logarithms London Bridge longitude by chronometer master miles Nautical Almanack Navigation noon northern hemisphere observed altitude observed meridian altitude Paper parallel sailing pass Port side Q.-Explain reckoned recurving required the latitude required the longitude required the true required the variation rule Seamanship Second Mate semi-circle set and drift sextant starboard starboard tack stowed subtract sun's Table Trade Passenger Ship true altitude valves voyage
Pasajes populares
Página 74 - Nothing in these rules shall exonerate any ship, or the owner, or master, or crew thereof, from the consequences of any neglect to carry lights or signals, or of any neglect to keep a proper look.out, or of the neglect of any precaution which may be required by the ordinary practice of seamen, or by the special circumstances of the case.
Página 72 - A vessel which, is closehauled on the port tack shall keep out of the way of a vessel which is closehauled on the starboard tack. (c) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
Página 99 - London, (the act of God, the queen's enemies, fire, and all and every other dangers and accidents of the seas, rivers, and navigation, of whatever nature and kind soever, excepted,) unto order or to assigns, he or they paying freight for the said goods at 51.
Página 73 - ... involve risk of collision, the steam ship shall keep out of the way of the sailing ship. Art. 16. Every steam ship, when approaching another ship so as to involve risk of collision, shall slacken her speed, or, if necessary, stop and reverse ; and every steam ship shall, when in a fog go at a moderate speed.
Página 76 - ... unless it is shown to the satisfaction of the Court that the circumstances of the case made a departure from the Regulations necessary.
Página 72 - If two ships under steam are meeting end on, or nearly end on, so as to involve risk of collision, the helms of both shall be put to port so that each may pass on the port side of the other.
Página 71 - Steamships, when towing other ships, shall carry two bright white masthead lights, vertically, in addition to their side lights, so as to distinguish them from other steamships.
Página 73 - When two steam vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard so that each may pass on the port side of the other.
Página 16 - The index of the logarithm of a number greater than unity, is one less than the number of digits in the integral part...
Página 71 - Ships, whether steam ships or sailing ships, when at anchor in roadsteads or fairways, shall, between sunrise and sunset, exhibit where it can best be seen, but at a height not exceeding 20 feet above the hull, a white light in a globular lantern of eight inches in diameter, and so constructed as to show a clear, uniform, and unbroken light visible all round the horizon, and at a distance of at least one mile.